Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - OR controller, electrical elements n-channel TSSOP 8 Source selector

STAT

ILIM

IN1

OUT

IN2

GND

TPS2115APW

0.1 mF

IN1:2.8 5.5- V

IN2:2.8 5.5- V

ILIM

SwitchStatus

TPS2114A

TPS2115A

www.ti.com

SBVS044F –MARCH 2004–REVISED MAY 2012

AUTOSWITCHING POWER MUX

Check for Samples: TPS2114A, TPS2115A

FEATURES

APPLICATIONS

• Two-Input, One-Output Power Multiplexer with

• PCs

Low r

DS(on)

Switches:

• PDAs

– 120 mΩ Typ (TPS2114A)

• Digital Cameras

– 84 mΩ Typ (TPS2115A)

• Modems

• Reverse and Cross-Conduction Blocking

• Cell Phones

• Wide Operating Voltage Range: 2.8 V to 5.5 V

• Digital Radios

• Low Standby Current: 0.5-μA Typ

• MP3 Players

• Low Operating Current: 55-μA Typ

• Adjustable Current Limit DESCRIPTION

The TPS211xA family of power multiplexers enables

• Controlled Output Voltage Transition Times

seamless transition between two power supplies

Limit Inrush Current and Minimize Output

(such as a battery and a wall adapter), each

Voltage Hold-Up Capacitance

operating at 2.8 V to 5.5 V and delivering up to 2 A,

• CMOS- and TTL-Compatible Control Inputs

depending on package. The TPS211xA family

• Manual and Auto-Switching Operating Modes

includes extensive protection circuitry, including user-

programmable current limiting, thermal protection,

• Thermal Shutdown

inrush current control, seamless supply transition,

• Available in TSSOP-8 and 3-mm × 3-mm SON-8

cross-conduction blocking, and reverse-conduction

Packages

blocking. These features greatly simplify designing

power multiplexer applications.

TYPICAL APPLICATION

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (27 pages)

PAGE 1
TPS2114A TPS2115A www.ti.com SBVS044F – MARCH 2004 – REVISED MAY 2012 AUTOSWITCHING POWER MUX Check for Samples: TPS2114A, TPS2115A FEATURES APPLICATIONS • • • • • • • • 1 2 • • • • • • • • • • Two-Input, One-Output Power Multiplexer with Low rDS(on) Switches: – 120 mΩ Typ (TPS2114A) – 84 mΩ Typ (TPS2115A) Reverse and Cross-Conduction Blocking Wide Operating Voltage Range: 2.8 V to 5.5 V Low Standby Current: 0.
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TPS2114A TPS2115A SBVS044F – MARCH 2004 – REVISED MAY 2012 www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure.
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TPS2114A TPS2115A www.ti.com SBVS044F – MARCH 2004 – REVISED MAY 2012 PACKAGE DISSIPATION RATINGS DERATING FACTOR ABOVE TA = 25°C TA ≤ 25°C POWER RATING TA = 70°C POWER RATING TA = 85°C POWER RATING TSSOP-8 (PW) 3.9 mW/°C 387 mW 213 mW 155 mW SON-8 (DRB) 25.0 mW/°C 2.50 W 1.38 W 1.0 W PACKAGE RECOMMENDED OPERATING CONDITIONS MIN Input voltage at IN1, VI(IN1) Input voltage at IN2, VI(IN2) UNIT 1.5 5.5 V VI(IN2) < 2.8 V 2.8 5.5 V VI(IN1) ≥ 2.8 V 1.5 5.5 V VI(IN1) < 2.8 V 2.8 5.
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TPS2114A TPS2115A SBVS044F – MARCH 2004 – REVISED MAY 2012 www.ti.com ELECTRICAL CHARACTERISTICS: GENERAL Over recommended operating junction temperature range, VI(IN1) = VI(IN2) = 5.5 V, and RILIM = 400 Ω, unless otherwise noted. TPS2114A PARAMETER TEST CONDITIONS MIN TYP MAX UNIT LOGIC INPUTS (D0 AND D1) VIH High-level input voltage VIL Low-level input voltage Input current at D0 or D1 2 V 0.7 V 1 µA 1.4 5 μA D1 = high, D0 = low (IN1 active), VI(IN1) = 5.5 V, VI(IN2) = 3.
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TPS2114A TPS2115A www.ti.com SBVS044F – MARCH 2004 – REVISED MAY 2012 ELECTRICAL CHARACTERISTICS: GENERAL (continued) Over recommended operating junction temperature range, VI(IN1) = VI(IN2) = 5.5 V, and RILIM = 400 Ω, unless otherwise noted. TPS2114A PARAMETER TEST CONDITIONS MIN TYP MAX UNIT 80 100 120 mV REVERSE CONDUCTION BLOCKING ΔVO(I_block) Minimum input-to-output voltage difference to block switching D0 = D1 = high, VI(INx) = 3.
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TPS2114A TPS2115A SBVS044F – MARCH 2004 – REVISED MAY 2012 www.ti.com Table 1. Truth Table D1 (1) (2) D0 VI(IN2) > VI(IN1) X (2) STAT OUT (1) Hi-Z IN2 0 0 0 1 No 0 IN1 0 1 Yes Hi-Z IN2 1 0 X 0 IN1 1 1 X 0 Hi-Z The under-voltage lockout circuit causes the output OUT to go Hi-Z if the selected power supply does not exceed the IN1/IN2 UVLO, or if neither of the supplies exceeds the internal VDD UVLO. X = Don’t care.
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TPS2114A TPS2115A www.ti.com SBVS044F – MARCH 2004 – REVISED MAY 2012 FUNCTIONAL BLOCK DIAGRAM 1 mA 1 mA IN1 IN2 Internal VDD Vf = 0 V Vf = 0 V IO(OUT) Q1 8 Q2 6 7 Charge Pump VDD ULVO IN2 ULVO IN1 ULVO Cross-Conduction Detector + _ 0.6 V + EN2 k* IO(OUT) _ TPS2114A: k = 0.2% TPS2115A: k = 0.1% + 0.
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TPS2114A TPS2115A SBVS044F – MARCH 2004 – REVISED MAY 2012 www.ti.com PARAMETER MEASUREMENT INFORMATION 90% 90% VO(OUT) 10% 10% 0V tr tf tPLH1 tPHL1 DO-D 1 Switch Off Switch Enabled Switch Off (a) 5V 4.8 V VO(OUT) 3.4 V 3.3 V tt DO-D 1 Switch #2 Enabled Switch #1 Enabled (b) 5V VO(OUT) 1.5 V 4.65 V 1.85 V tPLH2 tPHL2 DO-D 1 Switch #1 Enabled Switch #2 Enabled Switch #1 Enabled (c) Figure 1.
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TPS2114A TPS2115A www.ti.com SBVS044F – MARCH 2004 – REVISED MAY 2012 TYPICAL CHARACTERISTICS space OUTPUT SWITCHOVER RESPONSE VI(DO) 2V/Div 5V TPS2115APW NC 2 f = 28 Hz 78% Duty Cycle VI(D1) 2V/Div 1 3 4 STAT IN1 7 D0 OUT D1 IN2 ILIM 0.1 mF 8 GND 6 5 50 W 1 mF 400 W 3.3 V VO(OUT) 0.1 mF 2V/Div Output Switchover Response Test Circuit t - Time - 1 ms/div Figure 2.
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TPS2114A TPS2115A SBVS044F – MARCH 2004 – REVISED MAY 2012 www.ti.com TYPICAL CHARACTERISTICS (continued) space OUTPUT SWITCHOVER VOLTAGE DROOP VI(DO) 2V/Div 5V TPS2115APW NC VI(D1) 2V/Div CL = 1 mF f = 580 Hz 90% Duty Cycle 1 2 3 4 STAT IN1 7 D0 OUT D1 IN2 ILIM 0.1 mF 8 GND 6 5 CL 50 W 400 W VO(OUT) 2V/Div 0.1 mF CL = 0 mF Output Switchover Voltage Droop Test Circuit t - Time - 40 ms/div Figure 4.
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TPS2114A TPS2115A www.ti.com SBVS044F – MARCH 2004 – REVISED MAY 2012 TYPICAL CHARACTERISTICS (continued) space OUTPUT SWITCHOVER VOLTAGE DROOP vs LOAD CAPACITANCE 5 VI = 5 V VO(OUT) - Output Voltage Droop - V 4.5 4 3.5 RL = 10 W 3 2.5 2 1.5 1 RL = 50 W 0.5 0 0.1 VI 1 10 CL - Load Capacitance -mF 100 TPS2115APW NC 1 2 f = 28 Hz 50% Duty Cycle 3 4 400 W IN1 STAT D0 OUT D1 IN2 ILIM GND 8 0.1 mF 7 6 5 50 W 0.1 mF 0.
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TPS2114A TPS2115A SBVS044F – MARCH 2004 – REVISED MAY 2012 www.ti.com TYPICAL CHARACTERISTICS (continued) space AUTO SWITCHOVER VOLTAGE DROOP VI(IN1) 2V/Div 5V TPS2115A 1kW 1 2 f = 220 Hz 20% Duty Cycle 3 4 400W VO(OUT) 2V/Div STAT D0 D1 ILIM IN1 0.1 mF 8 7 OUT IN2 GND 6 5 VOUT 3.3V 10 mF 50 W 0.1mF 75% less output voltage droop compared to TPS2115 Auto Switchover Voltage Droop Test Circuit t - Time - 250 ms/div Figure 6.
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TPS2114A TPS2115A www.ti.com SBVS044F – MARCH 2004 – REVISED MAY 2012 TYPICAL CHARACTERISTICS (continued) space INRUSH CURRENT vs LOAD CAPACITANCE 300 200 VI = 5 V 150 VI = 3.3 V 100 I I - Inrush Current - mA 250 50 0 0 VI f = 28 Hz 90% Duty Cycle 20 40 60 80 CL - Load Capacitance -µF 100 TPS2115APW NC 1 2 NC 3 4 400 W STAT IN1 D0 OUT D1 IN2 ILIM GND 8 0.1 mF To Oscilloscope 7 6 5 50 W 0.1 mF 0.
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TPS2114A TPS2115A SBVS044F – MARCH 2004 – REVISED MAY 2012 www.ti.com TYPICAL CHARACTERISTICS (continued) space SWITCH ON-RESISTANCE vs JUNCTION TEMPERATURE SWITCH ON-RESISTANCE vs SUPPLY VOLTAGE 120 rDS(on) - Switch On-Resistance - m W rDS(on) - Switch On-Resistance - m W 180 160 TPS2114A 140 120 TPS2115A 100 80 60 -50 150 105 100 95 90 TPS2115A 85 2 3 4 5 VI(INx) - Supply Voltage - V Figure 8. Figure 9.
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TPS2114A TPS2115A www.ti.com SBVS044F – MARCH 2004 – REVISED MAY 2012 TYPICAL CHARACTERISTICS (continued) space SUPPLY CURRENT vs JUNCTION TEMPERATURE SUPPLY CURRENT vs JUNCTION TEMPERATURE 1.2 Device Disabled VI(IN1) = 5.5 V VI(IN2) = 3.3 V IO(OUT) = 0 A I I(INx) - Supply Current - mA 70 II(IN1) = 5.5 V 0.8 0.6 0.4 I I(INx) - Supply Current - mA 1 80 0.2 0 50 100 TJ - Junction Temperature - °C Figure 12.
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TPS2114A TPS2115A SBVS044F – MARCH 2004 – REVISED MAY 2012 www.ti.com APPLICATION INFORMATION Some applications have two energy sources, one of which should be used in preference to another. Figure 14 shows a circuit that will connect IN1 to OUT until the voltage at IN1 falls below a user-specified value. Once the voltage on IN1 falls below this value, the TPS2114A/5A will select the higher of the two supplies. This usually means that the TPS2114A/5A will swap to IN2. Switch Status IN1: 2.8 - 5.
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TPS2114A TPS2115A www.ti.com SBVS044F – MARCH 2004 – REVISED MAY 2012 DETAILED DESCRIPTION AUTO-SWITCHING MODE D0 equal to logic 1 and D1 equal to logic 0 selects the auto-switching mode. In this mode, OUT connects to the higher of IN1 and IN2. MANUAL SWITCHING MODE D0 equal to logic 0 selects the manual-switching mode. In this mode, OUT connects to IN1 if D1 is equal to logic 1, otherwise OUT connects to IN2.
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TPS2114A TPS2115A SBVS044F – MARCH 2004 – REVISED MAY 2012 www.ti.com REVISION HISTORY NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision E (April 2011) to Revision F Page • Changed description of power supplies in Description section ............................................................................................ 1 • Added IOUT column to Device Information table .............................................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 11-Apr-2013 Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
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PACKAGE MATERIALS INFORMATION www.ti.com 11-Jun-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device TPS2114APWR Package Package Pins Type Drawing TSSOP PW 8 TPS2115ADRBT SON DRB TPS2115APWR TSSOP PW SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 2000 330.0 12.4 7.0 3.6 1.6 8.0 12.0 Q1 8 250 180.0 12.4 3.3 3.3 1.1 8.0 12.0 Q2 8 2000 330.0 12.4 7.0 3.6 1.6 8.0 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 11-Jun-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS2114APWR TSSOP PW 8 2000 367.0 367.0 35.0 TPS2115ADRBT SON DRB 8 250 210.0 185.0 35.0 TPS2115APWR TSSOP PW 8 2000 367.0 367.0 35.
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